package com.tianji.learning.mq;

import com.tianji.api.dto.trade.OrderBasicDTO;

import com.tianji.common.constants.MqConstants;
import com.tianji.common.utils.CollUtils;
import com.tianji.learning.service.ILearningLessonService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.core.ExchangeTypes;
import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
import static com.tianji.common.constants.MqConstants.Key.PAY_SUCCESS;
import static com.tianji.common.constants.MqConstants.Queue.LEARNING_LESSON_PAY_QUEUE;


@Slf4j
@Component
@RequiredArgsConstructor
public class LessonChangeListener {
    private final ILearningLessonService lessonService;
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(name = LEARNING_LESSON_PAY_QUEUE, durable = "true"),
            exchange = @Exchange(name = MqConstants.Exchange.ORDER_EXCHANGE, type = ExchangeTypes.TOPIC),
            key = PAY_SUCCESS))
    public void ListenPayOrder(OrderBasicDTO order) {
        //order健壮性判断
        if (order == null || order.getUserId() == null || CollUtils.isEmpty(order.getCourseIds())) {
            log.error("接收到MQ消息有误，订单数据为空");
            return;
        }
        log.debug("监听到用户{}的订单{}，需要添加课程{}到课表中", order.getUserId(), order.getOrderId(), order.getCourseIds());
        lessonService.addLessons(order.getUserId(), order.getCourseIds());
    }
}
